Air conditioner



FIG. 1 is a top and front perspective view of an air conditioner, with louver closed, according to the novel design;

FIG. 2 is a front view of the air conditioner depicted in FIG. 1;

FIG. 3 is a perspective view of the air conditioner depicted in FIG. 1, with the louver open;

FIG. 4 is a right side view of an air conditioner according to the novel design disclosed; the left side view is a mirror image of the right side view;

FIG. 5 is a top view of an air conditioner according to the novel design disclosed; the bottom view is a mirror image of the top view; and,

FIG. 6 is a rear view of an air conditioner according to the novel design disclosed. 

CLAIM The ornamental design for an air conditioner, as shown and described. 